Bernardo Rhyner
Architect, Swiss and Canadian
Spanish, English, German, and some French and Italian
Architectural design, project conception, backstopping. Construction with eco-materials, implementation of housing projects

Kurt Rhyner
Architect, Dr., Prof., Switzerland
Spanish, English, German, French
Project conception, analysis of technologies and materials suitable for specific situations, financial analysis, executive management, monitoring, evaluations

Fernando Martirena
Professor, Civil Engineer, Dr., Cuba
Spanish, English, French, and German
Materials research, specifically alternative cement and cement products. Project conception.

Francis Benavides
Architect. Nicaragua
Spanish, English.
Project formulation, coordination, and evaluation. Member of the Circular Economy Group for construction materials, Global ABC.

Javier Gil Elias

Draftsman and Surveying Engineer, Spain
Spanish, English, French, and basic German.

Project formulation, coordination, and evaluation, as well as research on sustainable materials for social housing construction. Member of the Circular Economy Group for construction materials, Global ABC.

Ramón González
Spanish. Nicaragua
Project Coordination. Post-Disaster Reconstruction.

David Campos
Architect. Nicaragua
Spanish, English, French
Architectural design, Web manager

Estuardo Quispillo
Construction Technician, Ecuador
Spanish
Expert in the construction and operation of brick kilns: Continuous Vertical Kiln (Horno Vertical Contínuo, HVC / Vertical Shaft Brick Kiln, VSBK), reverse-draft, and traditional kilns. Installation, training, and commissioning of EcoMaterials workshops.

Diego Coloma
Mechanical Technician, Ecuador
Spanish, English
Installation, training, and commissioning of Micro-Concrete Tile workshops, Pozzolanic Cement, and concrete prefabricated elements.

Peter Arndt    

German, English, and basic Spanish

Twenty years of experience in dry sanitation and mud construction in Southern Africa and Latin America

Inventor and promoter of the Otji Toilet technology.

Sergio Moraga
Civil Engineer, Nicaragua
Spanish, English
Implementation of housing projects, Coordination of construction projects.

Yosvani Diaz
Civil Engineer, Professor. Cuba
Spanish, English

Sofía Sanchez
PhD in Economics, Cuba
Spanish, English
Technical-economic evaluation of investments, assessment of impacts from cement production, analysis of carbon emissions and energy, eco-efficiency, and life cycle analysis.

Pedro Seijo
Civil Engineer, Cuba
Spanish, English
Teaching, management of EcoMaterials workshops, research (municipal waste)

Franklin Martínez

Civil Engineer, Nicaragua Spanish, English
Implementation of housing projects, 
Español, inglés

Víctor Granja
Civil Engineer, Mexico
Spanish, English
Project implementation, backstopping

Kelvin Calderón
Administrator, Nicaragua
Spanish
Financial control, internal auditing, budgeting

Charlotte Belli
Psychologist, Nicaragua
Spanish
Feasibility studies of projects in the social sector, evaluations

Livio González
Sociologist, Nicaragua
Spanish
Project development and evaluation of social aspects

Pedro Galiano
Architect, Cuba
Spanish
Architectural design and management of construction projects